System Namespace
Provides fundamental classes and base types that define value types,
reference types, exceptions, arithmetic operations, type conversions,
event accesses, context and thread-bound storage, and base classes for
attributes and exceptions. This namespace is the root of the .NET type system.
Classes
Object
Class
Provides instance members that are available to all other classes; it is the ultimate base class of all types in the .NET Framework.
- GetType() Method
- ToString() Method
- Equals(Object) Method
String
Class
Represents text as a sequence of code points. String is an immutable type.
- Length Property
- Compare(String, String) Static Method
- Concat(String, String) Static Method
Exception
Class
Represents errors that occur during execution.
- Message Property
- StackTrace Property
Console
Class
Provides access to the standard input, output, and error streams for console applications.
- WriteLine(String) Static Method
- ReadLine() Static Method
Structs
Int32
Struct
Represents a 32-bit signed integer.
- Parse(String) Static Method
Boolean
Struct
Represents a Boolean value that is represented by true or false.
- Parse(String) Static Method
Interfaces
IDisposable
Interface
Provides a mechanism for releasing unmanaged resources.
- Dispose() Method
Enums
Delegates
Action
Delegate
Represents a delegate that encapsulates a method that does not return a value or takes no arguments.
- Invoke() Method